Take a look at this from the Health and Safety Executive website
http://www.hse.gov.uk/foi/internalop...-399/335_1.pdf
I couldn't believe what I was reading on page 21 135:
Measuring performance
135 Absence of routine monitoring of health and safety objectives set appears to be an MOD weakness. The phrase ‘management by exception’ is used, indicating that if nothing is evidently wrong nobody checks whether it is actually right.
